Reaction Mechanism MCQ -1 (Advanced) - JEE MCQ

Decreasing solvent polarty causes a large increase in therate of the SN₂ attack by ammonia on an alkyl halide

Increasing solvent polarity causes a large decrease in the rate of the SN₂ attack by hydroxide ion on trimethyl sulphonmium ion

Increasing solvent polarty causes a small decrease in the rat3e of the SN₂ attack by trimethylamins on trimethylsulfonium ion.

All  are incorrect

Treatment of either epoxide I or epoxide II with aqueous OH gives the same product III

Ketone

Alcohol

Aldehyde

Sugars

 Benzoic acid

Aniline

Salicylic acid

Phenol

(X →r)

(Y →s)

(Z → q)

(W  → p)

(X →p)

(Y →s)

(Z → q)

(W  → r)

(X →r)

(Y →q)

(Z → s)

(W  → p)

(X →q)

(Y →s)

(Z → q)

(W  → r)

A → q

B → r

C → q

D → s

A → p

B → r

C → s

D → q

A → s

B → r

C → q

D → p

A → r

B → p

C → q

D → s

Nucleoghiles have an unshared electron pair and can make use of theis to react with and electron rich species.

The nucleophillicity of an element generally inhcreases  on goiing left to right in periodic table.

A nucleophile is an electron deficient species

Leaving group ability kincreased in moving from L →R and TT → B in periodic table.

free radical

carbocation

carbanion

carbene